Drawing 1 px lines

[JohnMo]

Hello,

Im trying to draw 1 px lines, but Im having some problems with them..

The drawn lines are not 1 px, but 2 or 3. 

Some times they appear correct (1 px), but sometimes they change 

The main container is scaled, but I dont  think this could be the problem.

this is how i see it

this is my code.. 

Application options:

autoDensity: true,
width: WIDTH,
height: HEIGHT,
antialias: true,
backgroundAlpha: 0,
resolution: window.devicePixelRatio,
sharedLoader: true,

Lines:

const horizontalGraphic = new Graphics()
horizontalGraphic.lineStyle(1, 0x333333, 1)
horizontalGraphic.moveTo(1, 1)
horizontalGraphic.lineTo(w + 1, 1)
horizontalGraphic.position.set(0, w)
const s1 = new Sprite(renderer.generateTexture(horizontalGraphic))
s1.addChild(horizontalGraphic)
outlineRectangle.addChild(s1)